8391361 has 8 divisors (see below), whose sum is σ = 9180000. Its totient is φ = 7607040.

The previous prime is 8391349. The next prime is 8391377. The reversal of 8391361 is 1631938.

8391361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8391361 - 2²³ = 2753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8392361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4090 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (1147500).

Almost surely, 2^8391361 is an apocalyptic number.

It is an amenable number.

8391361 is a deficient number, since it is larger than the sum of its proper divisors (788639).

8391361 is a wasteful number, since it uses less digits than its factorization.

8391361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

The product of its digits is 3888, while the sum is 31.

The square root of 8391361 is about 2896.7845967555. The cubic root of 8391361 is about 203.2095597756.

The spelling of 8391361 in words is "eight million, three hundred ninety-one thousand, three hundred sixty-one".